转载：
http://stackoverflow.com/questions/8764017/commenting-and-uncommenting-xml-via-python
1 from xml.dom import minidom 2 3 xml = """ 4 <target depends="create-build-dir" name="build-Folio"> 5 <property name="project.name" value="Folio"/> 6 <ant antfile="build.xml" dir="Folio/FolioUI" inheritall="false" target="package"/> 7 <ant antfile="build.xml" dir="Folio/Folio" inheritall="false" target="package"/> 8 </target> 9 """ 10 11 def comment_node(node): 12 comment = node.ownerDocument.createComment(node.toxml()) 13 node.parentNode.replaceChild(comment, node) 14 return comment 15 16 def uncomment_node(comment): 17 node = minidom.parseString(comment.data).firstChild 18 comment.parentNode.replaceChild(node, comment) 19 return node 20 21 doc = minidom.parseString(xml).documentElement 22 23 comment_node(doc.getElementsByTagName('ant')[-1]) 24 25 xml = doc.toxml() 26 27 print 'comment_node(): ' 28 print xml 29 print 30 31 doc = minidom.parseString(xml).documentElement 32 33 comment = doc.lastChild.previousSibling 34 35 print 're-parsed comment: ' 36 print comment.toxml() 37 print 38 39 uncomment_node(comment) 40 41 print 'uncomment_node(): ' 42 print doc.toxml() 43 print
Output:
comment_node():<target depends="create-build-dir" name="build-Folio"><property name="project.name" value="Folio"/><ant antfile="build.xml" dir="Folio/FolioUI" inheritall="false" target="package"/><!--<ant antfile="build.xml" dir="Folio/Folio" inheritall="false" target="package"/>--></target>
re-parsed comment:<!--<ant antfile="build.xml" dir="Folio/Folio" inheritall="false" target="package"/>-->
uncomment_node():<target depends="create-build-dir" name="build-Folio"><property name="project.name" value="Folio"/><ant antfile="build.xml" dir="Folio/FolioUI" inheritall="false" target="package"/><ant antfile="build.xml" dir="Folio/Folio" inheritall="false" target="package"/></target>